Wagon box lift



Oct. 30, 1951 MQKENDREY 2,573,478

WAGON BOX LIFT Filed July 30, 1947 2 SHEETS-SHEET l "3 m Inventor L/ I Leo Mckendrey' B 4 Attorneys Oct. 30, 19 51 MGKENDREY Q 2,573,478

WAGON BOX LIFT Filed July so, 1947 2 SHEETSSHEET 2 N w Q m o N am Fig.2

I zwentar Patented Oct. 30, 1951 UNITED STATES PATENT OFFICE WAGON BOX LIFT Leo McKendrey, Shullsburg, Wis.

Application July 30, 1947, Serial No. 764,854

4 Claims. 1

The present invention relates to new and useful improvements in dump bodies for farm wagons and more particularly to a wagon box lift for hoisting and tilting the box of the wagon so that the contents will be discharged from inside of the box and at the rear end thereof.

An important object of the present invention is to provide a Wagon box lift of this character which may be mounted in operative position on a farm wagon of conventional construction and capable of use with wagon boxes of various sizes and without necessitating any changes or alterations in the construction of the wagon.

A further object of this invention is to provide a wagon box lift which may be easily and quickly mounted in position on the front and rear wagon bolsters and also easily and quickly attached to the wagon box.

A still further object is to provide a detachable hoisting unit which may be removed from the frame mounted on the wagon whereby the hoisting unit may be transferred to other wagons without necessitating removal of the frame for the lift.

A still further object is to provide an apparatus of this character of simple and practical construction, which is strong and durable, efficient and reliable in operation and otherwise well adapted for the purposes for which the same is intended.

Other objects and advantages reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming part hereof, wherein like numerals refer to like parts throughout, and in which:

Figure l is a side elevational view;

Figure 2 is a top plan view;

Figure 3 is a front elevational view;

Figure 4 is a transverse sectional view taken on the line 4-4 of Figure 2;

Figure 5 is an enlarged transverse sectional view taken on the line 5-5 of Figure 1, and;

Figure 6 is a fragmentary vertical sectional View of the hoisting gear taken on the line 5-5 of Figure 3.

Referring now to the drawings in detail wherein for the purpose of illustration I have disclosed a preferred embodiment of this invention the numeral 5 designates a substantially rectangular frame and including a pair of longitudinal channel frame members 6 rigidly connected to each other by cross frame members I. The frame member 5 is adapted to rest on the front and rear bolsters 8 and 9 of a conventional farm wagon I 0.

The ends of the longitudinal frame member 6 project beyond the front and rear cross members I and to the rear ends of the frame member 6 is'secured a transverse bar II to which the rear ends of a pair of lifting arms I2 are pivotally attached. The front ends of the arms I2 are rigidly connected to each other by a transverse brace I 3, the arms I2 and brace I3 preferably being of angle iron construction.

A hoisting unit is designated generally at I4 and comprises a pair of uprights I5 pivoted at their lower ends on a transverse bar I6 mounted at the front end of the frame member 6. The bar I6 extends through a tubular housing or sleeve I! which has its ends welded or otherwise suitably secured to the lower ends of the uprights I5 to provide a brace therefor and the rod I5 is removably mounted in the channel frame member 6 and in the housing I! by means of a locking pin I8 extending through aligned openings in the bar and the sleeve as shown in Figure 5 of the drawings.

A gear bracket or housing I9 is welded or otherwise suitably secured to the lower portion of one of the uprights I5 and in which is journaled a shaft 20 provided with a worm 2| and having a crank handle 22. The worm engages a worm gear 23 secured at one end of a shaft 24 which is journaled in the lower portion of the uprights I5 and provided with a drum 25.

A pair of cables 26 have their lower ends Wound on the drum 25 adjacent the respective ends of the drum and extend upwardly over pulleys 21 mounted at the upper ends of the uprights, the upper ends of the cables being provided with hooks 28 for engaging in openings 29 in the cross member I3 and the front ends of the arms l2. The upper ends of the uprights I5 are connected to each other by a brace 30.

In the operation of the device the arms I2 are bolted to the bottom of a wagon box 3I and the frame 5 mounted in position on the rear and front bolsters 8 and 9 of the wagon as shown in Figure l of the drawings. The hooks 28 are then engaged in the openings 29 of the transverse member I3 at the front ends of the arms [2 and the cables 26 wound on the drum 25 whereby to hoist the front end of the wagon box as shown by the dotted lines in Figure 1.

Stops 32 carried by the front ends of channel members 6 are engaged by the lower ends of uprights I5 to prevent downward and forward swinging movement of the uprights. Angle plates 33 are secured at the sides of channel members 6 in front of front bolster 8 and behind rear bolster 9 to prevent sliding movement of the wagon box on the bolsters.

In view of the foregoing description taken in Gil though there is herein shown and described a preferred embodiment of the invention the same is susceptible to certain changes fully comprehended by the spirit of the invention as herein described and the scope of the appended claims.

Having described the invention, what is claimed as new is:

1. An unloader comprising in combination with a wagon including a wagon box and front and rear bolsters, a frame loosely resting on the bolsters, stops carried by the frame engaging the bolsters to hold the frame against sliding movement, a pair of life arms pivoted to the rear end of the frame and secured to the box for lifting the box with the arms, and hoisting means for the front ends of the arms and carried by the frame.

2. An unloader comprising in combination with a wagon including a wagon box and front and rear bolsters, a frame loosely resting on the bolsters, stops carried by the frame engaging the bolsters to hold the frame against sliding movement, a pair of lift arms pivoted to the rear end of the frame and secured to the box, and hoisting means for the front ends of the arms and detachably carried by the frame.

3. An unloader comprising in combination with 4 a wagon including a wagon box and front and rear bolster, a frame loosely resting on the bolsters, stops carried by the frame engaging the bolsters to hold the frame against sliding movement, a pair of lift arms pivoted to the rear end of the frame and secured to the box, and hoisting means for the front ends of the arms and carried by the frame, said hoisting means including a pair of uprights, and a hoisting drum and cable mounted thereon.

4. An unloader comprising in combination with a wagon including a wagon box and front and rear bolsters, a frame loosely resting on the bolsters, stops carried by the frame engaging the bolsters to hold the frame against sliding movement, a pair of lift arms pivoted to the rear end of the frame and secured to the box, and hoisting means for the front ends of the arms and carried by the frame, said hoisting means including a pair of uprights pivoted to the frame, and a hoisting drum and cable mounted thereon.

LEO MCKENDREY.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 604,789 Reynolds May 31, 1898 859,691 Potter July 9, 1907 976,389 Nelson Nov. 22, 1910 1,332,308 Sanderson Mar. 2, 1920 1,357,279 Denny Nov. 2, 1920 1,403,587 Busacker Jan. 17, 1922 1,679,075 Coder et al. July 31, 1928 1,728,450 Weber et al Sept. 17, 1929 

